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Ground Shaker NP 2 12

Dual 12" Ported/Vented Pro Subwoofer Enclosure

Discontinued
|

We apologize

This item has been discontinued

General Features:

  • 12" Dual Ported Pro Subwoofer Enclosure
  • Subwoofer mounting depth: 14-1/2"
  • Durable 11/16" Medium Density Fiberboard (MDF) construction
  • Box volume: 1.35 cubic feet (per chamber)
  • Total box volume: 2.70 cubic feet
  • CARB compliant construction
  • Made in USA
  • Dimensions: 17-1/2"D x 33-1/4"W x 13-1/2"H
  • Authorized Internet Dealer
Also Found As: NP212, NP-212, NP-2-12

Product History:

Ground Shaker NP 2 12 thumbnail
(newest, current model)
Sonic Sub Boxes 2SV12-BLACK thumbnail
(previous model, replaced by Ground Shaker NP 2 12)

Speaker Box / Enclosure Specifications

Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
12"
Subwoofer Cutout Shape
This is the shape of the enclosures cutout hole and defines the style of subwoofer that can be installed.
Round / Circle
Box Type
Represents the style of the enclosure. Be sure to purchase the appropriate enclosure type and internal volume that will be compatible with your subwoofer's recommendation.

Sealed - Sealed boxes are those that have no holes or vents in it. The only hole in a sealed box is where the subwoofer is installed. Smaller sealed boxes require more power than a larger sealed box. They provide a tight, accurate bass, while the larger sealed enclosures provide a "boomier" and louder bass.

Ported / Vented - Ported/Vented Enclosures provide an even boomier, louder bass, but less accurate then a small, sealed box. Ported enclosures typically require more airspace per sub and also less power output from an amplifier to perform correctly.

Bandpass - Bandpass enclosures make subwoofers perform efficiently, but loose. The bass is not as "boomy" as a ported enclosure nor as punchy as a sealed enclosure. Bandpass enclosures work well with lower to mid-level subwoofers.
Vented / Ported
Number of Subs/Speakers
This value represents the number of speakers or subwoofers that the enclosure accommodates.
2
Box Style/Shape
The box style or shape refers to the actual shape of the box. Square and rectangular boxes are straight-edged boxes on all sides, whereas hatchback and truck style enclosures feature an angled front or back design that allows for installation in places short on depth such as single cab pickup trucks. You can also use such enclosures in hatchback cars or other vehicles where space is a premium. Tube and cylinder shaped boxes were made popular by Bazooka and are a great option for those looking for a nice amount of bass without sacrificing lots of space. They may even fit in locations that slim truck boxes cannot fit in. If the enclosure is vehicle specific, we encourage you to read the product description to find out which vehicles the enclosure is made for.
Square/Rectangle
Maximum Speaker Depth
Your subwoofer or speaker must not exceed this dimension in order to properly mount in this enclosure.
14-1/2"
Total Box Volume
The internal volume measurement in cubic feet before subwoofer magnet displacement.
2.70 cubic feet
Box Volume (Each Chamber)
This is the total air space inside each chamber of the empty subwoofer enclosure. By matching this value with the recommended air space of the subwoofer, you will be able to know if the subwoofer will match this box.
1.35 cubic feet
Height
The height of the item, measured from top to bottom, in inches.
13-1/2"
Width
The width of the item from left to right (side-to-side) measured in inches.
33-1/4"
Depth
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
17-1/2"
Second Depth
The second depth is used only when the box is slanted or angled. This value is the top measurement and it is measured in inches.
17-1/2"
Wood Thickness
The thickness of the wood the enclosure is made of, measured in inches.
11/16"

Port Details

Number of Ports
The number of ports the enclosure has.
2

Warranty and Return Policy

Parts Warranty Duration
Not warranted
Labor Warranty Duration
Not warranted
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
60%
4 Star
40%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.2
Value
4.8
Features
4.4
Design
4.7
Usability
4.7

Lilbtinder

Bowling Green, VA

Overall
Durability
Value
Features
Design
Usability

This Box is Amazing!

June 10, 2013

When I bought this box I didnt know what to expect from it and I'm using this box with a Lanzar vibe252 3000 watt amp and 2 12" kicker compr series subs that puts all my friends systems to shame! this box makes my subs so much louder compared to the previous boxes I have owned and I would highly recommend this box to anyone looking for a box that will give your subs the BOOM you want from them. Earlier today I stepped off 200 steps from my car and could still here the BOOM clearly. people on the side of the road will know that you are coming even before you get there!!!

1 of 1 found this helpful

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Brandie

SC

Overall
Durability
Value
Features
Design
Usability

Brandie

April 18, 2014

This box is in my malibu trunk and it sounds very well with my pioneer subs and hifonics amp !! I need to fix alot of rattles now and i will have some very low and smooth bass !!!

0 of 0 found this helpful

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justin

colorado springs, CO

Overall
Durability
Value
Features
Design
Usability

Ground shaker

April 15, 2014

This is really a ground shaker I like it with every bass that come out of it...get it bumping

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Keith

New Bloomington, OH

Overall
Durability
Value
Features
Design
Usability

Great Value

April 10, 2014

i will be ordering more of these this summer. keep stocked up.

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john

bristol, TN

Overall
Durability
Value
Features
Design
Usability

good product for the price

April 10, 2014

I have been in the industry for a long time, well built box for the price handles my kicker 12's good. Others are impressed from the sound quality of a prefab box, only owned one prefab and that was 20 years ago. Prefabs have came a long way since then.

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Zac

Lewiston, ID

Overall
Durability
Value
Features
Design
Usability

need better packaging

April 4, 2014

Good sub box, but was packaged sloppily. Basically it was dropped in a thin cardboard box, with packing peanuts and that was it. No plastic wrap so I had to spend a half hour vacuuming peanuts out of the carpet, and the delivery co. dropped it at one point resulting in a dent and wore a spot out on the thin carpet on the face of the sub box. Still, great box, made of MDF not particle board, just needs wrapped in a plastic bag/shrink wrapped and better cushioning.

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jose r

punta gorda, FL

Overall
Durability
Value
Features
Design
Usability

subwoofer box

December 21, 2013

thank you sonic !!! i bought a ground shaker for a pair of memphis 12" c3 subs...great price...i got it faster than expected....and it really is a ground shaker...my daughter will tell you !!

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Omar

Oak Ridge, TN

Overall
Durability
Value
Features
Design
Usability

very good box

December 16, 2013

Good box for the tag price of it got two pioneer champion series pro in it and it sounds very good in it

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Junebugg215

Karson Kalifornia

Overall
Durability
Value
Features
Design
Usability

Best Box

March 8, 2013

I had my two Hifonics 12s in a regular ported box, but upgraded to the Ground Shaker Np 2 12 Box and what a difference it made, it has my trunk back windows and roof rippling.

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De28

Orange City, IA

Overall
Durability
Value
Features
Design
Usability

Great product

September 18, 2013

Greatly built box, clean look. Just make sure that your subs match the cubic feet to get the best sounding set up possible

0 of 1 found this helpful

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Accessory Tools and Products

Accessories added

NVX XKIT42 - 4 Gauge Amp Kit

Pure Virgin Copper, 4 Gauge Amplifier Installation Kit

Your Price $89.99

Belva BAK42 - 4 Gauge Amp Kit

CCA 4 Gauge Wiring Kit with RCA & Speaker Wire

Your Price $29.99

8 Gauge - Stinger Amp Kit

Single amplifier 4000 Series complete installation kit.

Your Price $39.99

Belva BAK02 - 1/0 Gauge Amp Kit

CCA Wiring Kit with 2-Channel RCA & Speaker Cable

Your Price $59.99

NVX XKIT02 - True Spec 1/0 Gauge Amp Kit

Pure Virgin Copper, Full 1/0 Gauge Amp Kit with RCA

Your Price $149.99

High-Performance Streetwires Speaker Wire

25 ft. of 12 Gauge speaker cable with twisted pair construction for improved power flow and fine-stranded copper windings.

Your Price $44.95

NVX SDRLR1 Universal Roller Tool

Install your sound damping with the SDRLR1 tool

Your Price $7.99

20 ft. of Dynamat Xtreme Trunk Kit

Keep your trunk from rattling and improve bass quality by using a sound dampening trunk kit.

Your Price $109.95

NVX SDBP40 - 40 ft. (10% More Than Competition)

40 ft. Bulk Pack of Sound Dampening Material

Your Price $119.99

36 ft. of Dynamat Extreme Bulk Pack

Make your sound system sound perfect by reducing road noise with 9 sheets of sound dampening material.

Your Price $159.95

Banana Clip Terminals

These high grade banana clips allow you to plug into your banana clip ready terminal for a secure connection.

Your Price $3.99

Insulated Female Quick Disconnect Connectors

100 pack of 12-10 Gauge yellow insulated quick disconnects.

Your Price $7.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles or can be used for your polyfil.

Your Price $6.99

Car Stereo and Speaker / Subwoofer Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $12.99

Product Summary

Manufacturer

Model Number

NP 2 12

Weight

52.00lbs

Internal SKU

np212

Internal Product ID

62607

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Ground Shaker NP 2 12